Window frame and sash.



T. S'ONDERGARD. WINDOW FRAME AND 8ASH.

APPLICATION I'ILBD MAY 21, 1909.

Patented Jan. 10,1911.

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APPLICATION FILED MAY 21. 1909.

Patented Jan.,10, 1911.

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THOMAS SONDERGARD, OF CHICAGO, ILLINOIS.

WINDOW FRAME AND SASH.

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Specification of Letters Patent. Patented Jan. 10, 1911.

Application filed May 21, 1909. Serial No. 497,435.

To all whom it may concern:

Be it known that I, THOMAS SONDERGARD,

a subject of the King of Denmark, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Window Frames and Sash, of which the following is a specification.

My invention relates to window-frames and sash.

The object of my invention is to provide a construction of the character mentioned, which will be of such a design as to obviate the necessity of balance-weights which as known are essential in windows of the ordinary type.

A further object of my invention is to provide a construction of the character mentioned, which will be provided with means whereby the inner window-sash may be readily and easily removed from the windowframe in order to facilitate readily cleaning the outer surface of the pane of said sash or for other purposes necessitating the removal of the same.

A still further object of my invention is to provide a construction of such a design as to be of the highest possible efficiency and one which will be simple of design, hence, of low cost to manufacture.

Other objects will appear hereinafter.

With these objects in view, my invention consists generally in a construction as stated which is of such a design that one windowsash will be adapted to act as a balanceweight for the other.

My invention further consists in means whereby the ends of the sash-chains embodied in my invention, may be detachably secured to the upper extremity of the inner window-sash.

My invention further consists in a window-frame of such a novel construction that the inner window-sash may be entirely removed from or replaced in the same readily and with ease.

My invention further consists in certain details of construction and arrangements of parts all as will be hereinafter fully described and particularly pointed out in the claim.

My invention will be more readily understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a perspective view of the windew-frame and sash embodied in my invention, Fig. 2 is a similar perspective thereof showing the inner sash removed from the window-frame, Fig. 3 is a detail perspective of an upper corner of the inner window sash illustrating the means employed for detachably securing the sash-chains thereto, Fig. 4 is a detail perspective of that end portion of the sash-chain shown in Fig. 3, Fig. 5 is a vertical longitudinal section therethrough, and Figs. 6 and 7 are front and side elevations, respectively, of the sash-chain pulley and pulley-support embodied in my inven tion.

Referring now to the drawings, 1 indicates a window-frame and 2 and 3 the inner and outer sash, respectively, slidably mounted therein. Fixed in any suitable manner to the upper edge of the sash 3, one at either extremity thereof are the end portions 5 of chains or any suitable wire rope 6, such being used so as to avoid shrinkage, the latter being unavoidable in the ordinarily used fiber cord, such shrinkage being objectionable in my construction as it would obviously prevent tightly closing the windowsash. The opposite end portions 7 of said chains 6 rest in the usual vertically extending slots 8 provided in the lateral edges of the sash 2 for the reception of the same. In

order to facilitate detachably securing the' end portions 7 of said chains in said sashedges, I provide the latter with referably circular horizontally extending perforations 9 positioned in the same at the lower extremity of said slots 8, said perforations being of a greater diameter than the width of said slots 8 for reasons which will be obvious from the following. The extremities of the end portions 7 of the chains 6 are provided with cylindrical members 10, said members being adapted to be loosely received in the perforations 9 of the sash 2, hence, adapting said extremities of the sashchains to be detachably secured in said sash. The members 10 are preferably formed, shown, in Fig. 5 of the accompanying drawings, of a sheet metal outer casing 11 and an inner core 12 preferably formed of lead, however, I do not wish to be limited to this specific construction of the same as it might be otherwise constructed so as to serve the same purpose just as efficiently. Each of the chains 6 runs upon or over a channeled pulley 13, the same being mounted upon the vertically extending portion 14 of the pulley I support 15,

outer sash may in its ,place,

ably secured as by screws 16 passed through screw-holesl7 provided in the support 15 to the window-framing l in each of the extreme upper corners thereof, a the upper and side parting beads 18 and 119, respectively, being cut away as clearly shown in Figs. 1 and 2 so as to facilitate so positioning the same. In order that the be closed up tightly, I cut away the upper inner corners of said sash as at 20 leading to the vertical slots ordinarily provided sition.

In order to facilitate the removing of the inner sash from the windowframing a portion of each of the inner stop-beads 21 of a length slightly greater than that of the window-sash is removed and a strip 23 inserted said strip being preferably formed of metal for the purpose hereinafter stated. Said strip 23 is pivoted as at 24 to the window-framing, said pivotal point heing directly opposite the lower edge of the window-sashes when the same are atthe same level for a reason that will be obvious as the description proceeds, said strips being secured in normal position, that is, vertical position, by thumb-screws 25.

In proceeding to remove the inner sash as before stated, the same is so positioned in the window-frame that the lower edge thereof and hence, the lower edge of the outer sash is directly opposite the pivotal point24l of the strip 23. The thumb-screws 25 are then re moved and the strips 23 swung inwardly, the same being secured in horizontal position by one of the screws 25 being passed through either of the same and screwed into the window-framing 1, as clearly shown in Fig. 2. Byso doing the lower end portions 26 of said strips are swung under both of the winone of said supports being suit-V portion of therein, the sash-chains bein' ada ted to rest in said cut-:a'wa oor- I tions when said sash is in its uppermost poesnoaa dow-sashes, the same resting thereon. Said portion 26 is offset as clearly shown in Fig. 1 so as to be adapted 'to clear the Windowframe parting beads when so positioned. It is obvious that the window-sash 2 may then be drawn outwardly and supported upon the portion 23 (hence, the reason for forming the sameof metal as shown in Fig. 2, and the ends 7 of the chains 6 removed 111 which case the sash is entirely free.

' While 1 have shown what I deem tobe the preferable form of myoonstruo'tion, I do not wish :to be limited thereto as there anig'h t be many changes made in the arrangement of parts and details of construction without departing from the spirit of my invention.

Having described my invention what I claim :as new and desire to secin'e by Letters Patent, is: V

In a Window-frame and sashes slid-a bly mounted therein, 'a section of the inner stopeadsof said window-firaine being pivot-ally secured to said window-frame, said sections being secured in upright position by th-un ibscrews, the upper end portions of said sections being adapted to be swung inwardly and secured in horizontal position when the lower edges 'of-sa id sashes are directly opposite the pivotal point of said stop-bead section, the inner sash being adapted when said sections are in horizontal position to be removed fronilthe window-frame, the outer window-sash being adapted when the inner sash is removed to rest upon the outwardly extending other end portion of said stopbead sections, substantial-1y asdescribed.

In testimony whereof I have signed any name to this specification in the presenoeot two subscribing witnesses.

THOMAS- 'SONDERGARD. lVitnesses JOSHUA .R. H. Po'r'rs, HELEN F. LrLLIs. 

